Locking receptacle.



P. W. HODGKINSON. LOCKING RECEPTAQLE. APPLICATION FILED Nov,1o,1909.

1,03*,583. Patented Sept. 1'?, 1912.

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P. W.H0DGKINSON. LOCKING RECEPTACLE. APPLICATION FILED Nov. 1o, 1909.

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Patented Sept. 17, 1912.

UNITED sTATEs PATENT oEEioE.

BERCY w. HoDeKINsoN, E ROCHESTER, NEW YORK, AssreNoE 'ro CALDWELL MANU- EAcrURINGcoMBANY, 'or ROCHESTER, NEW YORK, A coaroEATIoN or NEwjroaK.

LOCKING RECEIETACLE.

. Specification of Letters Patent i Patehtd Sept, 17, 1912.

Application filed November 10,1909.` 'Serial No. 527,348.

To all whom t may concern.'

Be it known that I, PERCY W. HonoKiN i soN, a citizen of the United States, and resident of Rochester, in the county of Monroe and Stage of New York, have' invented certain new and useful Improvements in Locking Receptacles, of which lthe following'is a specification. Y

This invention relates to receptacles or cupboards to which access 1s gained by oppositely placed doors that open in opposite directions, and the object ofthe invention is to lock one door automatically and so retaln it in its closed position till the other doorhas been both opened and closed again.

In the drawingsz-Figure 1 isa ventical section of a cupboardtted with a lock ems*- bodying the invention, vwith the .lock in' inoperative position; Fi 2 is a similar sectionI showing the position of the lockaitger! the outer door has been opened; `Fig. 3'`is a similar section 'showin the outer door closed and locked; and Flg. 4 is a similar section with the outer door locked and the inner door open.

The several parts of the lock" are represented in the drawings as assembled by atfperso'i1 delivering the package, and to obbottles, groceries, etc., when delivered at thev building, the purpose of the lock being to safeguard the package and save time to the viate-the necessity of immediately removing the package on the part of persons within the building. In such an arrangement the door 4 is arranged to open into the building, and the door 3 to-open out-doors.

On the duter vdoor 3 is a spring-pressed latch 5, ada ted to be engaged by a keeper that Vis pivoed on the plate 1 at 7. The

keeper has a hooked arm 6 which coperate's.

withq the latch, and two arms 8, 9, that extend upward and downward from the pivot 7, respectively. When the arm 6 is .tilted as shown in Fig.v .1, the outer door 3 is free to be opened-but when said arm is placed as in Fig. 2, Athe latch 5 will -snap. under it shown in Fig. 2.

ingly be locked shut.

YThe inner door 4 may be unlocked at all 14, so that the rod may swing vertically.`

Above the pivot is a stud 15 that con-l stitutes a support for a fiat spring 16. The spring bears against a pin 1-7 on the side of the arm 6, and also 'has a hump 18 that is adapted to snapseither under 0r over said pin, as the case may be, thereby holding the arm 6 upo'rdown unt-il considerable force has been exerted to turn it about the pivot 7.

On the rod10 is a pin 19 that projects through a slot in "aclinlg 20. This link is hung from one armfof ahllcrank lever 21 Athat is pivoted on the plate 1"'at 22. The

other arm of the bell-crank lever is connected to a rod 24 that ispressed against the inner side of the outer door-3, near the edge opposite its hinge, by a spring 23. The lat-terissliown as integral with the spring 16.

When the parts are positioned as in Fig. 1 the outer door 3 is free to be opened. As said door is swung open the rod 24 is pushed outward by the spring 23, and so tilts the bell-crank lever 21. about its pivot 22. The

link 20 is thereby moved upward, andthe as the door closes, and the latter will accord! rod 10, being connectedto said link ley-the pin 19, is swung, together with its gulding collar 11, about the ivot 14 to the'position .n moving upward the outer end ofthe rod 10 engagesv the inner edge of the arm 8. Inasmuch as the rod'10 cannot move backward, since its inner `end bears against the plate 13 on the closed door 4, it follows that the arm 8 is forced outward, and the arm 6 is accordingly depressed suttciently to engage the latch 5 when the door is closed again:`-A In the downward movement of the arm 6 Hic hump 18 on the spring 1G snaps over the pin 17, so that it retains said arm in the depressed position. The pressure of the spring 23 is suiicient to cause. this movement. Then the outer door 3 is again closed, .as shown in -ing the latter toward the door 4. Both the bell-crank lever 21 and the link Q0 are thus returned to their former positions. rod 10 keeps its upward position, however, because -it is jammed between the inner edge of the arm 8 -and the plate 13, which prevents the spring 12 from acting to draw the outer end of the rod away from said arm, but which does not prevent the link 2O from moving downward, because there is a pinand-slot connection between said parts, asl

described above. In this position (F ig. 3) the arm ti is positively retained in engagement with the latch 5, and accordingly the door 3 cannot' be opened from wit-hout. Then the door 4 is opened (see Fig. 4), the plate 13 is moved away from the inner end of the rod 10, and this permits the-spring 12 to carry the rod 10 away from the arm 8, till its outer end drops down and stops against a lip 25 on the lower end of the arm 9 (Fig. 4). A weight'QG on the rod l0 near its end aids the movement thereof. A

stop 27 is provided to limit the movement imparted to the rod 1.0 by the springlQ by coming l int-o contact with the `collar 14. When the parts are in the positions last described (see Fig. 4), the plate 13 will strike the inner end of the rod 10, when the door 4 is closed7 and will move it outward through vthe collar' 11, and cause its outer end to. strike the arm 9. This movement raises the arm 6, and the outer door 3 is thus released and may be opened from outside.

that I claim is r*- 1. The combination, with a cupboard having an outer door and an inner door, the outer door carrying a latch, of a lever having a plurality of arms and pivoted within the box and having on one arm a hook adapted to engage the latch, andan unlocking device movably supported within the cupboard and adapted, 1n one position, to be moved by the inner door, in closing, to engage a second arm of the lever' and thereby swing the lever -to disengager the hook from the latch; substantially as shown and described.

2. The combination, with a cupboard having an outer door and an inner door, the outer door carrying a latch, of a leve;` having a plurality of arms, pivot-ed within the Thev receptacle and carrying on one arm a hook adapted to engage the latch, an unlocking device adapted to engage one arm ot said lever to disengage said lever from the latch and to engage another arm to set said lever in position to engage the latch, the unlocking device receiving its impulse from the movement ot one door i'or one of said operations and controlled by the other door with respect to the other said operation; Substantially as shown and described.

3. The combination, with a cupboard having an outer door and an inner door, the outer door carrying a latch, ot a lever hav; ing a plurality of arms, pivoted within the receptacle and carrying on one arm a hook adapted to engage the latch, an unlocking device pivotally supported within the receptacle movable to and from said lever and i adapted, in one angular position, to be moved'longitudinally against said lever by the movement of the inner door and thereby to operate saidy lever in one direction, and also adapted to engage said lever when swung about its pivotal support to operate said lever in the opposite direction; and

`means cont-rolled by the outer door for causangular position, to be moved longitudinally, against the resistance of its spring, by the' inner door, to operate said lever in one direction, and also adapted to engage said lever, when swung about its pivotal support, to operate said lever in the opposite direction; and means controlled by the outer door for causing said unlocking device to swing and so to operate'the lever as lastdescribed; substantially as shown and described; y

PER-CY WV. HGDGKINSON.

Witnesses:

D. GURNEE, L. THON. 

